>Date: Fri, 30 Jul 2004 13:57:41 -0400
>To: Homebrew_PCBs@yahoogroups.com
>From: steve gunsel <gunsel@...>
>Subject: IPA and acetone
>
>ST,
>
>Volatility (speed of evaporation) has a lot to do with it. Volatility and
>solvency are not the same. Acetone, however, is a potent solvent for many
>substances and also happens to be highly volatile. If you dissolve
>"anything" in the acetone, and allow the acetone to evaporate, the
>"anything" will be left behind. And acetone evaporates very quickly - it
>starts evaporating as soon as it is applied. Nothing on a board is
>likely to evaporate faster or it would not be there in the first
>place. IPA evaporates more slowly so you have a better chance of removing
>the IPA with the dissolved residue.
>
>Help any?
>
>Steve Gunsel
>Medina, OH
>
>>As for the "IPA leaves residue",
>>it sounds right, but strangely i get holes in the transfer with acetone
>>while it is perfect with IPA.
>>I must try again with 100% same procedure.
>>
>>ST
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